It is absolutely possible to switch to 6 rings from 4. I just did this today by calling Fido customer service (Service quality levels have really gone downhill as it took me all of 1 hr to get such a simple thing done - Fido system glitch to billing department to 'Rogers' tech support who said "it's impossible, 100% for Fido customers". Turns out he was so incredibly stubborn and wrong. Transfered me to 'Fido tech support' which happened to be 'Fido internet'. The kind lady placed me on hold, while contacting Rogers/Fido mobile support to and get me to someone who could handle this. NOTE: this is NOT possible for Rogers cusomers (as of March 2023), but only possible for Fido customers. It was handled by Rogers/Fido mobile support and the kind lady even did some testing. It took litterally an hour to get done, speaking to 4 representatives (10 years ago when I did it with Fido support, it was handled on the first call and immediately). As an aside, Rogers/Fido really need to step up the monitoring and communication internally for support and continuous improvement.